Clam shell bucket



=Nov. 24, 1931. c A. CARNEY GLAM SHELL BUCKET Filed Nov. 7. 1928 INVENTOBY zr f A TTORNEYS.

Patented Nov. 24, 1931 stares sates eerie];

' CHAR-LES A. CARNEY, or ERIE, PENNSYLVANIA, AssIeNon' T e. H. WI LI MS00M- PANY, or ERIE, PENNSYLVANIA, A CORPORATION or PENNs Lv NIA CLAMSHELL BUCKET Application filed November 7, 1928. Serial No. 817,850.

It is desirable to vary the weight of clam shell buckets in accordancewith the material which is being handled. The present invention isdesigned to provide a convenient means for this purpose. Features anddetails of the invention will appear from the specification and claims.

A preferred embodiment of the inventlon is illustrated in theaccompanying drawings as follows Fig. 1 shows a side elevation of thebucket, partly in section.

Fig. 2 an end elevation, partly in section.

Fig. 3 an enlarged perspective view of one of the weight sections.

Fig. 4 a perspective view of an auxiliary weight.

The bucket members 1 and 2 are of usual form and provided with arms 3and 4 oper ating pivotally on a pin 5, the arm 4 having a perforated.end 6 receiving the pin and the arm 3 being connected through an oil-setportion 7 from which extends a power arm 8.

A head 9 is connected with the outer edges of the bucket members bylinks 10 in the usual manner. A cable 11 extends around a sheave 12 onthe head, a sheave 13 on the power arm, a sheave 14 on the head, asheave 15 on the power arm and is secured to the head by a bracket 16.These parts are of usual construction.

lVeights 17 are arranged each side of the sewer arm. They are providedwith perforations 18 at their upper ends through which clamping bolts 19extend. They are provided with perforations 20 at their lower endsthrough which clamping bolts 21 extend. The weights have notches 22which permit them to be placed over the oil-sets 7 between the arms 3and the power arm 8. The walls of the notches 22 are provided withgrooves 23 which are adapted to engage the tongues, or shoulders 24: onthe offsets 7 This tongue and groove connection locks the weightsagainst turning on the extension although the clamping bolts may effectthis.

The weights 1'? are provided with a'cavity 25 and an auxiliary weight,or insert 26 is adapted to be placed in the cavity 25 thus supplementingthe weight 17. It has a notch 27 corresponding to the notch 22 and agroove 28 corresponding to the groove 23 for engagement with the tongueor shoulder 24:.

Vith this construction the weight may be readily attached, or detachedand may be varied by the insert in a convenient manner. It will beunderstood that these devices are subjected to very severe shocks andthis arrangement of weights makes it possible to so secure them in placethat they will retain their position under these severe shocks. Thevariation in weight increases the power ofthe bucket in accordance withthe material being handled. While I prefer the structure in which thepower arm is used the power arm is not in all instances necessary inmaking the weight available.

WVhat I claim as new is:

1. In a clam shell bucket, the combination of bucket members; pivotally.connected arms extending from the members; a detachable weight securedat the connection of the arms; and means locking the weight againstturning relatively to one of the-arms, said means comprising a tongueand groove con nection between the weight and one of the arms. i

,2. In aclam shell bucket, the combination of bucket members; pivotallyconnected arms extending from the members; a detachable weight securedat the connection of the arms,

said weight comprisingtwo 'parts,ione each side of the axis oitthe pivotbolts at opposite sides of the axis of the pivot clamping the partstogether; and a tongue and groove connection between one-of the arm andthe weight.

3. In a clam shell bucket, the combination 7 I of bucket members;pivotally connected arms extending from the members; a detachableprimary weight secured at the connection of the, arms, said primaryweight being hollow; and a removable auxiliary weight in the primaryWeight.

4. In a clam shell bucket, the combination ofbucket members; pivotallyconnected arms extending from the members; a detachable primary weightsecured at the connection of the arms, said primary weight being hollow;a removable auxiliary Weight in the primary weight; and means forlocking the primary and auxiliary weights against movement relatively toone of said arms. I I

5. In a clam shell bucket, the combination of bucket me'mbers pivotallyconnected through arms, a plurality of arms extending from each member;a power arm between the arms extending from one of the members andconnected with said member arms through an off-set connection; anddetachable weights arranged on said'ofi-set connections at each side ofthe power arm.

' .6. In a clam shell bucket, the combination of bucket memberspivotally, connected through arms, a plurality of arms extending fromeach member; a power arm between the arms extending from one of themembers and connected with said member arms through. an off-setconnection; detachable weights arranged on said off-set connections ateach side of the power arm, each weight being formed in two parts; andmeans clampin the parts together.

i. In a clam shell bucket, the combination of bucket members; pivotallyconnected arms extending from the members; a power arm connected withone of the member arms through an ofi-set connection; a detachableweight on the connection; and I means for locking the Weight againstmoveinent relatively to the power arm comprising a tongue and groove.

8. In a clam shell bucket, the'combination of bucket members pivotallyconnected through arms,'a plurality of arms extending from each member;a power arm between the arms extending from one of the members andconnected with said member arms through an off-set connection;detachable Weights arranged'on said off-set connections at each side ofthe power arm, said weights each comprlsmg two parts; clamplng boltsconnecting the parts; and tongue and groove connections between theparts and the off-set connections.

a 9. In a clam shell bucket, the combination of bucket members;pivotally connected arms'extending 'l'romthe members; a power armconnected with one of the memberarms through an ofi-setconnection and adetachable weight on the connection, said weight being provided with acavity and a removable insert arranged in the cavity.

10. In a clam shell bucket, the combinabeing provided with a cavity anda removable insert arranged in the cavity, said weight and: insert beinglocked against movement relatively to the power arm.

In testimony whereof I have hereunto set my hand. 7

CHARLES A. CARNEY.

